Seiko Cal. 4580 - 644

The 4580-644 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4580 caliber with 21j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-c4e83ba770e0]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1968

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